Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method of determining a distance between a device and a target device, the method comprising: receiving, by the device, a first signal from the target device, the first signal being associated with a first intensity; receiving, from a reference device located at a predetermined distance from the target device, intensity information corresponding to a second intensity associated with a second signal received by the reference device from the target device; and determining the distance between the device and the target device based on the first intensity, the predetermined distance, and the intensity information corresponding to the second intensity.
A method for a device to find its distance from a target device involves the device receiving a signal from the target. This signal has a measured intensity. The device also receives intensity information from a reference device, which is located a known distance from the target. This information represents the signal intensity the reference device measured from the target. The distance between the device and the target is then calculated using the device's intensity, the reference device's intensity information, and the known distance between the reference device and the target.
2. The method of claim 1 , wherein the determining of the distance comprises comparing the second intensity, which corresponds to the predetermined distance between the target device and the reference device, with the first intensity.
The distance determination method described previously, where a device calculates its distance from a target by using signal intensities received from the target at both the device and a reference device, and knowing the distance between the reference and target, specifically compares the signal intensity measured by the reference device (which corresponds to the known distance between the target and reference) with the signal intensity measured by the device. This comparison is used in the distance calculation.
3. The method of claim 1 , wherein the first signal is broadcasted from the target device at an output intensity, and the second signal is broadcasted from the target device at the output intensity.
In the distance determination method where a device calculates its distance from a target by comparing received signal strengths with a reference device, both the device and reference device receive signals from the target, and the signals from the target device are transmitted with the same output power or intensity. That is, the target broadcasts at a constant power.
4. The method of claim 1 , wherein the intensity information is comprised within a packet including a power value indicating the second intensity from the reference device.
In the distance determination method, the intensity information received from the reference device comes in a packet. This packet contains a power value that represents the signal intensity measured by the reference device. So, the reference device encapsulates its signal measurement in a data packet for transmission.
5. The method of claim 4 , further comprising: decoding the received packet; and acquiring the power value from the decoded packet.
The method of determining distance based on signal intensities, including receiving a data packet containing signal intensity information from a reference device, involves decoding the received packet to extract the power value that represents the signal intensity measured by the reference device. Therefore the process includes packet decoding and power value extraction.
6. The method of claim 1 , further comprising: acquiring, from the target device, reference intensity information indicating an intensity of a received signal per a unit distance, which has been predetermined by the target device; and determining channel state between the device and the target device by comparing the reference intensity information with the intensity information.
This distance determination method, which involves comparing signal intensities between a device and a reference point, further includes the device receiving reference intensity information from the target device. This information indicates the signal intensity per unit distance as pre-determined by the target. The method then calculates the signal channel state (signal quality) between the device and target by comparing the received reference intensity information with the intensity information measured by the device.
7. The method of claim 1 , wherein the intensity information corresponding to the second intensity is generated by the reference device.
In the distance determination method, where a device calculates its distance from a target by comparing received signal strengths with a reference device, the intensity information (representing the signal strength measured at the reference device) is generated by the reference device itself, not by the target or any other system. The reference device measures and provides its signal strength.
8. The method of claim 1 , wherein the second signal is transmitted by the target device located at the predetermined distance from the reference device.
In this distance determination method, involving comparison of signal intensities between a device and a reference, the signal received by the reference device (whose intensity is used for distance calculation) is transmitted by the target device. Furthermore, the target device is located at a predetermined distance from the reference device.
9. The method of claim 8 , wherein the intensity information comprises information about the second intensity and the predetermined distance.
In the described distance determination method, where the signal is transmitted by the target located at a known distance from the reference device, the intensity information sent from the reference device includes information about the signal intensity it measured AND the known, predetermined distance between the target and the reference device. This combined information is used to calculate the distance between the device and target.
10. A non-transitory computer-readable medium having recorded thereon a computer-readable program for executing the method of claim 1 .
A non-transitory computer-readable storage medium (like a hard drive or flash drive) has instructions stored on it. When a computer or device executes these instructions, it performs the distance determination method, which involves receiving a signal from a target, receiving signal intensity information from a reference, and calculating the distance based on those intensities and the known distance between the target and reference.
11. A device for determining a distance between the device and a target device, the device comprising: a communicator configured to receive a first signal from the target device, the first signal being associated with a first intensity, and to receive, from a reference device located at a predetermined distance from the target device, intensity information corresponding to a second intensity of a second signal received by the reference device from the target device; and a controller configured to determine the distance between the device and the target device based on the first intensity, the predetermined distance, and the intensity information corresponding to the second intensity.
A device can determine its distance from a target device. The device contains a communication component which receives a signal transmitted from the target, and receives intensity data (representing the signal strength measured at a reference device) from a separate, reference device which is located at a known distance from the target. A controller component then calculates the distance between the device and target, using the signal strength of the signal it received, the reference intensity data, and the known distance between the reference device and the target.
12. The device of claim 11 , wherein the controller is further configured to determine the distance between the device and the target device by comparing the second intensity, which corresponds to the predetermined distance between the target device and the reference device, and the first intensity.
A device that determines its distance from a target using signals received directly and indirectly through a reference point calculates the distance by comparing the signal intensity information from the reference device (which corresponds to the known distance between the target and the reference device) with the signal intensity measured directly by the device from the target signal. This comparison is used by the device's controller to find the distance.
13. The device of claim 11 , wherein the first signal is broadcasted from the target device at an output intensity, and the second signal is broadcasted from the target device at the output intensity.
In the device for determining distance based on signal intensities, the signal the device receives from the target, and the signal the reference device receives from the target (which generates the reference intensity data) are both broadcast from the target device at the same output power, or intensity.
14. The device of claim 11 , wherein the communicator is further configured to receive a packet including a power value indicating the second intensity from the reference device.
A device for determining distance from a target via signal intensities receives a data packet from the reference device. This packet includes a power value representing the signal intensity from the target as measured by the reference device. The device's communication component is responsible for receiving this packet.
15. The device of claim 14 , wherein the controller is further configured to decode the received packet and acquire the power value from the decoded packet.
A device that finds distance through signal intensities by receiving a packet from a reference device, further decodes this received data packet to extract the embedded power value. This power value represents the signal intensity measured by the reference device and is used by the device's controller to calculate the distance to the target. The controller handles decoding the packet.
16. The device of claim 11 , wherein the communicator is further configured to acquire, from the target device, reference intensity information indicating an intensity of a received signal per a unit distance, which has been predetermined by the target device, and the controller is further configured to determine a channel state between the device and the target device by comparing the reference intensity information with the intensity information.
In the device for finding distance using signal intensities, the communication component receives reference intensity information from the target device, indicating the signal intensity per unit distance (pre-determined by the target). The device's controller then calculates the channel state (signal quality) between the device and the target by comparing this reference intensity information with the actual signal intensity measured by the device.
17. The device of claim 11 , wherein the intensity information corresponding to the second intensity is generated by the reference device.
In this device for distance determination based on signal intensities, the intensity information corresponding to the reference signal is generated by the reference device itself. The reference device measures the signal intensity and sends that measurement to the device attempting to determine its distance from the target.
18. The device of claim 11 , wherein the second signal is transmitted by the target device located at the predetermined distance from the reference device.
The device calculates its distance from a target by comparing its signal strength to a reference signal received by a reference device. This reference signal, whose intensity is measured and transmitted to the device, is transmitted by the target device itself, located at a predetermined distance from the reference device.
19. The reference device of claim 18 , wherein the intensity information comprises information about the second intensity and the predetermined distance.
This device calculates its distance using signals from a target and a reference signal, where the target transmits a signal from a known distance from the reference. The reference device's intensity information comprises both the measured intensity of the received signal and the known, predetermined distance between the target and the reference. This combination of information is used to calculate the distance between the initial device and the target.
20. The reference device of claim 11 , wherein the controller is further configured to determine the distance between the device and the target device based on the predetermined distance, the first intensity and the intensity information corresponding to the second intensity.
A device uses signal strengths for distance calculations, involving signals received both directly from a target device and indirectly through a reference. The controller calculates the distance between the initial device and the target using the known distance between the reference device and the target, the signal intensity measured directly by the device, and the signal intensity information received from the reference.
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August 29, 2017
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